*/
+#define _BSD_SOURCE
+#define _GNU_SOURCE
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <sys/soundcard.h>
+#include <sys/types.h>
+#include <unistd.h>
#include "../common.h"
#include "gp2x.h"
#include "warm.h"
-extern int main_cpuspeed(int argc, char *argv[]);
-extern SDL_Surface* screen;
-
u32 gp2x_audio_volume = 74/2;
u32 gpsp_gp2x_dev_audio = 0;
u32 gpsp_gp2x_dev = 0;
static volatile u16 *gpsp_gp2x_memregs;
static volatile u32 *gpsp_gp2x_memregl;
-unsigned short *gp2x_memregs;
-
-s32 gp2x_load_mmuhack()
-{
- s32 mmufd = open("/dev/mmuhack", O_RDWR);
-
- if(mmufd < 0)
- {
- system("/sbin/insmod mmuhack.o");
- mmufd = open("/dev/mmuhack", O_RDWR);
- }
-
- if(mmufd < 0)
- return -1;
-
- close(mmufd);
- return 0;
-}
#ifdef WIZ_BUILD
#include <linux/fb.h>
void *gpsp_gp2x_screen;
-static u32 fb_paddr[3];
-static void *fb_vaddr[3];
+#define fb_buf_count 4
+static u32 fb_paddr[fb_buf_count];
+static void *fb_vaddr[fb_buf_count];
static u32 fb_work_buf;
-const int fb_buf_count = 3;
-static int fb_buf_use = 3;
+static int fb_buf_use;
+static int fbdev;
static void fb_video_init()
{
struct fb_fix_screeninfo fbfix;
int i, ret;
- int fbdev;
fbdev = open("/dev/fb0", O_RDWR);
if (fbdev < 0) {
printf("framebuffer: \"%s\" @ %08lx\n", fbfix.id, fbfix.smem_start);
fb_paddr[0] = fbfix.smem_start;
- close(fbdev);
fb_vaddr[0] = mmap(0, 320*240*2*fb_buf_count, PROT_READ|PROT_WRITE,
MAP_SHARED, gpsp_gp2x_dev, fb_paddr[0]);
void pollux_video_flip()
{
- warm_cache_op_all(WOP_D_CLEAN);
gpsp_gp2x_memregl[0x406C>>2] = fb_paddr[fb_work_buf];
gpsp_gp2x_memregl[0x4058>>2] |= 0x10;
fb_work_buf++;
else if (count > fb_buf_count)
count = fb_buf_count;
fb_buf_use = count;
+ memset(fb_vaddr[0], 0, 320*240*2*count);
+}
+
+void wiz_lcd_set_portrait(int y)
+{
+ static int old_y = -1;
+ int cmd[2] = { 0, 0 };
+
+ if (old_y == y)
+ return;
+ cmd[0] = y ? 6 : 5;
+ ioctl(fbdev, _IOW('D', 90, int[2]), cmd);
+ gpsp_gp2x_memregl[0x4004>>2] = y ? 0x013f00ef : 0x00ef013f;
+ gpsp_gp2x_memregl[0x4000>>2] |= 1 << 3;
+ old_y = y;
}
static void fb_video_exit()
{
- /* switch to default fb mem */
+ /* switch to default fb mem, turn portrait off */
gpsp_gp2x_memregl[0x406C>>2] = fb_paddr[0];
gpsp_gp2x_memregl[0x4058>>2] |= 0x10;
+ wiz_lcd_set_portrait(0);
+ close(fbdev);
+}
+
+static int wiz_gamepak_fd = -1;
+static u32 wiz_gamepak_size;
+
+static void wiz_gamepak_cleanup()
+{
+ if (wiz_gamepak_size)
+ munmap(gamepak_rom, wiz_gamepak_size);
+ if (wiz_gamepak_fd >= 0)
+ close(wiz_gamepak_fd);
+ gamepak_rom = NULL;
+ wiz_gamepak_size = 0;
+ wiz_gamepak_fd = -1;
}
+
+u32 wiz_load_gamepak(char *name)
+{
+ char *dot_position = strrchr(name, '.');
+ u32 ret;
+
+ if (!strcasecmp(dot_position, ".zip"))
+ {
+ if (wiz_gamepak_fd >= 0)
+ {
+ wiz_gamepak_cleanup();
+ printf("switching to ROM malloc\n");
+ init_gamepak_buffer();
+ }
+ return load_file_zip(name);
+ }
+
+ if (wiz_gamepak_fd < 0)
+ {
+ extern void *gamepak_memory_map;
+ free(gamepak_rom);
+ free(gamepak_memory_map);
+ gamepak_memory_map = NULL;
+ printf("switching to ROM mmap\n");
+ }
+ else
+ wiz_gamepak_cleanup();
+
+ wiz_gamepak_fd = open(name, O_RDONLY|O_NOATIME, S_IRUSR);
+ if (wiz_gamepak_fd < 0)
+ {
+ perror("wiz_load_gamepak: open failed");
+ return -1;
+ }
+
+ ret = lseek(wiz_gamepak_fd, 0, SEEK_END);
+ wiz_gamepak_size = gamepak_ram_buffer_size = ret;
+
+ gamepak_rom = mmap(0, ret, PROT_READ, MAP_SHARED, wiz_gamepak_fd, 0);
+ if (gamepak_rom == MAP_FAILED)
+ {
+ perror("wiz_load_gamepak: mmap failed");
+ return -1;
+ }
+
+ return ret;
+}
+
#endif
+static int get_romdir(char *buff, size_t size)
+{
+ FILE *f;
+ char *s;
+ int r = -1;
+
+ f = fopen("romdir.txt", "r");
+ if (f == NULL)
+ return -1;
+
+ s = fgets(buff, size, f);
+ if (s)
+ {
+ r = strlen(s);
+ while (r > 0 && isspace(buff[r-1]))
+ buff[--r] = 0;
+ }
+
+ fclose(f);
+ return r;
+}
+
void gp2x_init()
{
+ char buff[256];
+
gpsp_gp2x_dev = open("/dev/mem", O_RDWR);
gpsp_gp2x_dev_audio = open("/dev/mixer", O_RDWR);
gpsp_gp2x_memregl =
(unsigned long *)mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED,
gpsp_gp2x_dev, 0xc0000000);
gpsp_gp2x_memregs = (unsigned short *)gpsp_gp2x_memregl;
+ warm_init();
#ifdef WIZ_BUILD
gpsp_gp2x_gpiodev = open("/dev/GPIO", O_RDONLY);
- warm_init();
fb_video_init();
#endif
-// clear_screen(0);
-// main_cpuspeed(0, NULL);
- gp2x_memregs = (void *)gpsp_gp2x_memregs;
- cpuctrl_init();
+ if (get_romdir(buff, sizeof(buff)) > 0)
+ chdir(buff);
+
gp2x_sound_volume(1);
}
void gp2x_quit()
{
+ char buff1[256], buff2[256];
+
+ getcwd(buff1, sizeof(buff1));
+ chdir(main_path);
+ if (get_romdir(buff2, sizeof(buff2)) >= 0 &&
+ strcmp(buff1, buff2) != 0)
+ {
+ FILE *f = fopen("romdir.txt", "w");
+ if (f != NULL)
+ {
+ printf("writing romdir: %s\n", buff1);
+ fprintf(f, "%s", buff1);
+ fclose(f);
+ }
+ }
+
+ warm_finish();
#ifdef WIZ_BUILD
close(gpsp_gp2x_gpiodev);
fb_video_exit();
+ wiz_gamepak_cleanup();
#endif
munmap((void *)gpsp_gp2x_memregl, 0x10000);
close(gpsp_gp2x_dev_audio);
close(gpsp_gp2x_dev);
- //chdir("/usr/gp2x");
- //execl("gp2xmenu", "gp2xmenu", NULL);
+ fcloseall();
+ sync();
exit(0);
}
#endif
}
-#ifdef WIZ_BUILD
-void cpuctrl_init(void)
-{
-}
-
+// Fout = (m * Fin) / (p * 2^s)
void set_FCLK(u32 MHZ)
{
-}
+ u32 v;
+ u32 mdiv, pdiv, sdiv = 0;
+#ifdef WIZ_BUILD
+ #define SYS_CLK_FREQ 27
+ // m = MDIV, p = PDIV, s = SDIV
+ pdiv = 9;
+ mdiv = (MHZ * pdiv) / SYS_CLK_FREQ;
+ mdiv &= 0x3ff;
+ v = (pdiv<<18) | (mdiv<<8) | sdiv;
+
+ gpsp_gp2x_memregl[0xf004>>2] = v;
+ gpsp_gp2x_memregl[0xf07c>>2] |= 0x8000;
+ while (gpsp_gp2x_memregl[0xf07c>>2] & 0x8000)
+ ;
+#else
+ #define SYS_CLK_FREQ 7372800
+ // m = MDIV + 8, p = PDIV + 2, s = SDIV
+ pdiv = 3;
+ mdiv = (MHZ * pdiv * 1000000) / SYS_CLK_FREQ;
+ mdiv &= 0xff;
+ v = ((mdiv-8)<<8) | ((pdiv-2)<<2) | sdiv;
+ gpsp_gp2x_memregs[0x910>>1] = v;
#endif
+}
notaz.gp2x.de / gpsp.git / blobdiff